| 摘要 |
<p>A polar modulator has amplitude and phase predistorters (11,12) connected upstream of amplifier in signal direction for partial compensation of distortion caused by amplifier and with variable predistortion. A receiving path is used for receiving the radio signal and for adjustment of predistorters to determine a measurement signal dependent on the output signal received from the amplifier through a coupling path. The predistorters are adjusted by a control and evaluation unit, as a function of measurement signal. An independent claim is also included for predistortion adjustment method.</p> |
